Since I don't think I could ever afford to go to this...
There is a 4th Emergent Technology Conference for 2005. And some top session picks.

But since it is in San Diego and I don't think I'm in a position to ask my company to pay for this, here are some links to archives that I didn't know existed.

This is a list of presentations from 2004's O'Reilly's Emergent Technology conference. Here are the archive home links for 2003, and 2002 as well.